Bug 558664 - Cquery integration should be extracted from LSP Core

Part 4:
Switch C/C++ LSP preferences to LanguageServerConfiguration and remove
constants with server identifiers. Align i18n accordingly.

Change-Id: I4dcd9ea57a2c4577bb6763bb859afbd339eb66e0
Signed-off-by: Alexander Fedorov <alexander.fedorov@arsysop.ru>

lsp/org.eclipse.cdt.lsp.core/META-INF/MANIFEST.MF

@@ -27,6 +27,7 @@ Export-Package: org.eclipse.cdt.cquery;x-friends:="org.eclipse.cdt.lsp.ui",
  org.eclipse.cdt.internal.clangd;x-friends:="org.eclipse.cdt.lsp.ui",
  org.eclipse.cdt.internal.cquery;x-friends:="org.eclipse.cdt.lsp.ui",
  org.eclipse.cdt.internal.cquery.ui;x-internal:=true,
+ org.eclipse.cdt.lsp;x-friends:="org.eclipse.cdt.lsp.ui",
  org.eclipse.cdt.lsp.core;x-friends:="org.eclipse.cdt.lsp.ui",
  org.eclipse.cdt.lsp.internal.core;x-internal:=true,
  org.eclipse.cdt.lsp.internal.text;x-friends:="org.eclipse.cdt.lsp.ui"

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/internal/clangd/ClangdLanguageServer.java

@@ -19,17 +19,14 @@ import org.osgi.service.component.annotations.Component;
 @Component
 public class ClangdLanguageServer implements LanguageServerConfiguration {
 
-	//FIXME: remove this constant, it is not needed outside the class
-	public static final String CLANGD_ID = "clangd"; //$NON-NLS-1$
-
 	@Override
 	public String identifier() {
-		return ClangdLanguageServer.CLANGD_ID;
+		return "clangd"; //$NON-NLS-1$
 	}
 
 	@Override
 	public String label() {
-		return "ClangD";
+		return ClangdMessages.ClangdLanguageServer_label;
 	}
 
 	@Override

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/internal/clangd/ClangdMessages.java

@@ -0,0 +1,28 @@
+/*******************************************************************************
+ * Copyright (c) 2020 ArSysOp and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Alexander Fedorov (ArSysOp) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.clangd;
+
+import org.eclipse.osgi.util.NLS;
+
+public class ClangdMessages extends NLS {
+	private static final String BUNDLE_NAME = "org.eclipse.cdt.internal.clangd.ClangdMessages"; //$NON-NLS-1$
+	public static String ClangdLanguageServer_label;
+	static {
+		// initialize resource bundle
+		NLS.initializeMessages(BUNDLE_NAME, ClangdMessages.class);
+	}
+
+	private ClangdMessages() {
+	}
+}

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/internal/clangd/ClangdMessages.properties

@@ -0,0 +1,14 @@
+###############################################################################
+# Copyright (c) 2020 ArSysOp and others.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# https://www.eclipse.org/legal/epl-2.0/.
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+# Contributors:
+#     Alexander Fedorov (ArSysOp) - initial API and implementation
+###############################################################################
+
+ClangdLanguageServer_label=ClangD

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/internal/cquery/CqueryLanguageServer.java

@@ -25,17 +25,14 @@ import com.google.gson.JsonObject;
 @Component
 public class CqueryLanguageServer implements LanguageServerConfiguration {
 
-	//FIXME: remove this constant, it is not needed outside the class
-	public static final String CQUERY_ID = "cquery"; //$NON-NLS-1$
-
 	@Override
 	public String identifier() {
-		return CqueryLanguageServer.CQUERY_ID;
+		return "cquery"; //$NON-NLS-1$
 	}
 
 	@Override
 	public String label() {
-		return "CQuery";
+		return CqueryMessages.CqueryLanguageServer_label;
 	}
 
 	@Override

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/internal/cquery/CqueryMessages.java

@@ -1,14 +1,11 @@
 /*******************************************************************************
- * Copyright (c) 2019 Eclipse Foundation and others.
+ * Copyright (c) 2019, 2020 Eclipse contributors and others.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
  * https://www.eclipse.org/legal/epl-2.0/.
  *
  * SPDX-License-Identifier: EPL-2.0
- *
- * Contributors:
- *     Alexander Fedorov <alexander.fedorov@arsysop.ru> - initial API and implementatin
  *******************************************************************************/
 package org.eclipse.cdt.internal.cquery;
 
@@ -23,6 +20,7 @@ public class CqueryMessages extends NLS {
 		NLS.initializeMessages(BUNDLE_NAME, CqueryMessages.class);
 	}
 
+	public static String CqueryLanguageServer_label;
 	public static String CquerySymbolKind_e_illegal_value;
 	public static String Server2ClientProtocolExtension_cquery_name;
 	public static String StorageClass_e_illegal_value;

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/internal/cquery/CqueryMessages.properties

@@ -1,17 +1,13 @@
 ###############################################################################
-# Copyright (c) 2019 Eclipse Foundation and others
+# Copyright (c) 2019, 2020 Eclipse contributors and others.
 #
 # This program and the accompanying materials are made available under the
 # terms of the Eclipse Public License 2.0 which is available at
 # https://www.eclipse.org/legal/epl-2.0/.
 #
 # SPDX-License-Identifier: EPL-2.0
-#
-# Contributors:
-#     Eclipse Foundation - initial API and implementation
-#     Alexander Fedorov <alexander.fedorov@arsysop.ru> - Bug 558484
 ###############################################################################
 
+CqueryLanguageServer_label=CQuery
 CquerySymbolKind_e_illegal_value=Illegal value  {0} for cquery symbol kind
-Server2ClientProtocolExtension_cquery_name=CQuery
 StorageClass_e_illegal_value=Illegal enum value: {0}

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/lsp/core/PreferenceInitializer.java

@@ -23,6 +23,7 @@ public class PreferenceInitializer extends AbstractPreferenceInitializer {
 	@Override
 	public void initializeDefaultPreferences() {
 		IEclipsePreferences node = DefaultScope.INSTANCE.getNode(Activator.PLUGIN_ID);
+		//FIXME: how to determine the preferred LS implementation?
 		node.put(PreferenceConstants.P_SERVER_CHOICE, "clangd"); //$NON-NLS-1$
 		node.put(PreferenceConstants.P_SERVER_OPTIONS, ""); //$NON-NLS-1$
 	}

lsp/org.eclipse.cdt.lsp.core/src/org/eclipse/cdt/lsp/core/Server2ClientProtocolExtension.java

@@ -58,8 +58,7 @@ public class Server2ClientProtocolExtension extends LanguageClientImpl {
 
 	public Server2ClientProtocolExtension() {
 		this.uri = new ResolveDocumentUri();
-		this.progress = new ShowStatus(() -> CqueryMessages.Server2ClientProtocolExtension_cquery_name,
+		this.progress = new ShowStatus(() -> CqueryMessages.CqueryLanguageServer_label, new StatusLineMessage());
-				new StatusLineMessage());
 	}
 
 	@JsonNotification("$cquery/progress")

lsp/org.eclipse.cdt.lsp.ui/META-INF/MANIFEST.MF

@@ -7,6 +7,7 @@ Bundle-Name: %Bundle-Name
 Bundle-Vendor: %Bundle-Vendor
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.eclipse.osgi;bundle-version="[3.15.0,4.0.0)",
+ org.eclipse.core.runtime;bundle-version="3.19.0",
  org.eclipse.equinox.preferences;bundle-version="[3.7.0,4.0.0)",
  org.eclipse.jface.text;bundle-version="3.16.0",
  org.eclipse.ui;bundle-version="[3.115.0,4.0.0)",

lsp/org.eclipse.cdt.lsp.ui/src/org/eclipse/cdt/lsp/internal/ui/LspUiMessages.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2019 Eclipse Foundation and others.
+ * Copyright (c) 2019, 2020 Eclipse Foundation and others.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -24,9 +24,6 @@ public class LspUiMessages extends NLS {
 		NLS.initializeMessages(BUNDLE_NAME, LspUiMessages.class);
 	}
 
-	public static String CPPLanguageServerPreferencePage_clangd;
-	public static String CPPLanguageServerPreferencePage_cquery;
-
 	public static String CPPLanguageServerPreferencePage_description;
 	public static String CPPLanguageServerPreferencePage_server_options;
 	public static String CPPLanguageServerPreferencePage_server_path;

lsp/org.eclipse.cdt.lsp.ui/src/org/eclipse/cdt/lsp/internal/ui/LspUiMessages.properties

@@ -1,5 +1,5 @@
 ###############################################################################
-# Copyright (c) 2019-2020 Eclipse Foundation and others
+# Copyright (c) 2019, 2020 Eclipse Foundation and others
 #
 # This program and the accompanying materials are made available under the
 # terms of the Eclipse Public License 2.0 which is available at
@@ -13,10 +13,6 @@
 #     Philip Langer <planger@eclipsesource.com> - Bug 563280
 ###############################################################################
 
-CPPLanguageServerPreferencePage_clangd=ClangD
-
-CPPLanguageServerPreferencePage_cquery=CQuery
-
 CPPLanguageServerPreferencePage_description=Preferences for the C/C++ Language Server\n\n
 CPPLanguageServerPreferencePage_server_options=Command-line options for the server
 CPPLanguageServerPreferencePage_server_path=Path to the server executable

lsp/org.eclipse.cdt.lsp.ui/src/org/eclipse/cdt/lsp/internal/ui/preferences/CPPLanguageServerPreferencePage.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2018-2020 Manish Khurana, Nathan Ridge and others.
+ * Copyright (c) 2018, 2020 Manish Khurana, Nathan Ridge and others.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -17,14 +17,18 @@
 package org.eclipse.cdt.lsp.internal.ui.preferences;
 
 import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
 
-import org.eclipse.cdt.internal.clangd.ClangdLanguageServer;
+import org.eclipse.cdt.lsp.LanguageServerConfiguration;
-import org.eclipse.cdt.internal.cquery.CqueryLanguageServer;
+import org.eclipse.cdt.lsp.SupportedLanguageServers;
 import org.eclipse.cdt.lsp.core.CPPStreamConnectionProvider;
 import org.eclipse.cdt.lsp.core.PreferenceConstants;
 import org.eclipse.cdt.lsp.internal.ui.LspUiActivator;
 import org.eclipse.cdt.lsp.internal.ui.LspUiMessages;
 import org.eclipse.cdt.ui.newui.MultiLineTextFieldEditor;
+import org.eclipse.core.runtime.ServiceCaller;
 import org.eclipse.jface.preference.FieldEditor;
 import org.eclipse.jface.preference.FieldEditorPreferencePage;
 import org.eclipse.jface.preference.FileFieldEditor;
@@ -52,10 +56,7 @@ public class CPPLanguageServerPreferencePage extends FieldEditorPreferencePage i
 	@Override
 	public void createFieldEditors() {
 		serverChoice = new RadioGroupFieldEditor(PreferenceConstants.P_SERVER_CHOICE,
-				LspUiMessages.CPPLanguageServerPreferencePage_server_selector, 1,
+				LspUiMessages.CPPLanguageServerPreferencePage_server_selector, 1, contributedServers(),
-				new String[][] {
-						{ LspUiMessages.CPPLanguageServerPreferencePage_clangd, ClangdLanguageServer.CLANGD_ID },
-						{ LspUiMessages.CPPLanguageServerPreferencePage_cquery, CqueryLanguageServer.CQUERY_ID } },
 				getFieldEditorParent());
 		addField(serverChoice);
 
@@ -82,4 +83,12 @@ public class CPPLanguageServerPreferencePage extends FieldEditorPreferencePage i
 	@Override
 	public void init(IWorkbench workbench) {
 	}
+
+	private String[][] contributedServers() {
+		List<LanguageServerConfiguration> servers = new ArrayList<>();
+		ServiceCaller.callOnce(getClass(), SupportedLanguageServers.class, x -> servers.addAll(x.all()));
+		return servers.stream()//
+				.map(x -> new String[] { x.label(), x.identifier() })//
+				.collect(Collectors.toList()).toArray(new String[0][]);
+	}
 }